One or more of the components being installed are already registered as 64 bit components in the target application. You ...

One or more of the components being installed are already registered as 64 bit components in the target application. You must install the 32 bit versions of the components being installed in a different COM+ application, or delete the existing 64 bit versions of the components being installed from the target COM+ application prior to attempting install of the 32 bit versions. COM+ applications cannot contain bit neutral components.